PITTSBURGH (KDKA) — The FAA is investigating after a drone was seen flying near the Allegheny County Airport Sunday morning.

According to the FAA, around 10 a.m. Sunday, a flight crew on a Canadair regional jet saw a drone about 5,000 feet in the air near the Allegheny County Airport.

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The drone did not interfere with the plane, but the crew reported it to the FAA, and an investigation is being conducted.

“Incidents like this, both at Pittsburgh International and Allegheny County Airport, have been relatively rare,” said Bob Kerlick, spokesperson for the Allegheny County Airport. “People have been, I think, smart for the most part, not flying drones around airports.”

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Allegheny County Police are searching for the drone operator.

This incident comes just days after the FAA announced that new rules will be implemented regarding drones.

The FAA says drone and model airplane pilots are not allowed to fly within five miles of an airport or higher than 400 feet. Pilots will also have to register their aircrafts with the government, which will cost $5, and obtain an identification number for their drone.